Newell, W.
1899
On the North American species of the subgenera Diaspidiotus and Hemiberlesia, of the genus Aspidiotus..
Contributions of the Department of Zoology and Entomology, Iowa State College
3: 1-31.

Notes:
Keys for 2 subgenera of Aspidiotus, 19 Diaspidiotus, and 8 Hemiberlesia; descriptions or notes for 26 Diaspidiotus including 1 new species, 1 new variety; descriptions or notes for 8 Hemiberlesia.